CTI Cryogenics

CTI Cryogenics 8143143 He Supply & Return Lines G001 G002 Aeroquip 260 PSIG

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SKU:
20259
MPN:
8143143 G001
Condition:
Used
Availability:
Currently out of stock — contact us for availability.
Weight:
4.00 LBS
Shipping:
Calculated at Checkout
  • CTI Cryogenics 8143143 two pairs of helium supply and return lines showing bent stainless tubing with orange SUPPLY and RETURN labels and Aeroquip couplings on each end
  • CTI Cryogenics 8143143G001 and G002 helium lines close-up of Aeroquip low-air-inclusion refrigerant coupling face showing internal valve seal and 0.75-inch hex nut
  • CTI Cryogenics 8143143 helium supply and return line pair laid flat showing SUPPLY (green label) and RETURN (red label) Aeroquip couplings and stainless tubing bends
$160.00
Was: $230.00

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Description

CTI Cryogenics 8143143 He Supply & Return Lines G001 G002 Aeroquip 260 PSIG

This listing is for two (2) pairs of CTI Cryogenics helium compressor supply and return lines, part number 8143143, variants G001 (supply) and G002 (return). These rigid stainless steel lines connect the helium supply and return ports of a CTI cryogenic compressor and are rated for use in NMR and cryogenic cooling circuits. Each end is fitted with an Aeroquip low-air-inclusion refrigerant coupling designed to minimize air ingestion during connect/disconnect cycles.

Specifications & What's Included

  • Manufacturer: CTI Cryogenics
  • Base Part Number: 8143143
  • Supply Line: 8143143 G001 (8143143G001) — 14" long
  • Return Line: 8143143 G002 (8143143G002) — 14.5" long
  • Approximate total tubing length per line: ~19 inches
  • Quantity: Two (2) complete pairs (2x G001 supply + 2x G002 return)
  • Pressure rating: 260 PSIG
  • Application designation: NMR 363-00
  • Supply line coupling: Aeroquip 5400-S5-4 (low air inclusion refrigerant coupling)
  • Return line coupling: Aeroquip 5400-S2-4 (low air inclusion refrigerant coupling)
  • One coupling on each end of each line
  • Coupling hex nut size: 0.75 inch
  • Supply and return lines have different bend geometries to fit their respective port positions
  • SUPPLY (green label) and RETURN (red/orange label) identification labels on each line

Applications

CTI Cryogenics is a leading manufacturer of closed-cycle cryogenic refrigeration systems widely used in NMR spectroscopy, MRI magnet cooling, semiconductor fabrication (cryopumps), and scientific research. These helium supply and return lines are part of the high-pressure helium circuit that connects the compressor unit to the cold head in a CTI two-stage Gifford-McMahon cryocooler system. The Aeroquip low-air-inclusion couplings are a key design feature: they use a spring-loaded internal valve that minimizes the volume of atmospheric air introduced into the helium circuit during each connection cycle, protecting the closed-loop system from contamination and pressure loss. Replacement or spare transfer lines like these are commonly needed during compressor overhaul, system relocation, or when original lines develop kinks or fitting wear from repeated connect/disconnect cycles in laboratory and research environments.

Condition: Used
These CTI Cryogenics 8143143 helium supply and return lines (G001 and G002) have been inspected and are in good used condition. The stainless tubing is intact with no visible kinks or damage, and the Aeroquip low-air-inclusion couplings on each end show normal handling wear consistent with prior service use. Orange SUPPLY and RETURN labels are present and legible on all lines. Please view our photo set and contact us if you have any questions.
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Warranty Information

We stand behind every item we sell with a 30-day money-back guarantee. If your item arrives not as described, you may return it within 30 days for a full refund. Please inspect your purchase upon arrival and contact us with any questions.
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Additional Information

Brand:
CTI-Cryogenics
Model:
8143143
MPN:
8143143
Secondary Model:
8143143G001 / 8143143G002
SKU:
20259
Type:
Helium Compressor Supply & Return Lines
Quantity:
Two (2) Pairs (1x G001 Supply + 1x G002 Return per pair)
Supply Line Part Number:
8143143 G001 (8143143G001)
Return Line Part Number:
8143143 G002 (8143143G002)
Supply Line Length:
14 inches
Return Line Length:
14.5 inches
Approximate Tubing Length:
~19 inches per line
Pressure Rating:
260 PSIG
Coupling Manufacturer:
Aeroquip
Supply Coupling Model:
Aeroquip 5400-S5-4
Return Coupling Model:
Aeroquip 5400-S2-4
Coupling Type:
Low Air Inclusion Refrigerant Coupling
Coupling Hex Nut Size:
0.75 inch
Application:
NMR / Cryogenic Compressor Helium Circuit
Compatible With:
CTI Cryogenics compressors (NMR 363-00 series)
Country/Region of Manufacture:
United States
Condition Notes:
CTI Cryogenics 8143143 He supply & return lines (G001/G002) inspected and in good used condition. Tubing intact, Aeroquip couplings present and undamaged. Normal service wear. Please view photos and contact us with questions.
California Prop 65 Warning:
WARNING: This product can expose you to chemicals including lead and lead compounds, and DEHP (a phthalate), which are known to the State of California to cause cancer and birth defects or other reproductive harm. Go to P65Warnings.ca.gov
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Related Products

Related Products

CTI Cryogenics 8143143 helium compressor supply and return line pair shown together – full view of both bent stainless steel tubes with Aeroquip couplings CTI Cryogenics 8143143 cryo lines – close-up front view of Aeroquip 5400-S5-4 female and 5400-S2-4 male coupling ends showing internal seals and threaded fittings
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CTI Cryogenics 8143143 He Compressor Supply & Return Line Pair Aeroquip

CTI Cryogenics

$35.00
Was: $70.00
CTI Cryogenics 8143143 He Compressor Supply & Return Line Pair Aeroquip 5400-S5-4Matched pair of stainless steel rigid tubing lines for helium compressor systems. Supply line 8143143G001 measures 14"...
20258
SKU:
20258
Availability:
Usually ships within 1-2 business days.
Weight:
3.00 LBS
Brand:
CTI-Cryogenics
Model:
8143143
MPN:
8143143
Secondary Model:
8143143G001 / 8143143G002
Type:
Helium Compressor Supply & Return Line Pair
SKU:
20258
Condition:
Used – Pulled from Working Environment
Seller Notes:
Includes one matched pair: supply line 8143143G001 (14") and return line 8143143G002 (14.5")
Compatible With:
CTI Cryogenics helium compressors and cryopump systems
Coupling Type (Supply End):
Aeroquip 5400-S5-4 Coupling Half – Female
Coupling Type (Return End):
Aeroquip 5400-S2-4 Coupling Half – Male
Inlet Thread:
1/2"-20 Thread
Outlet Thread:
5/8"-18 UNF Thread
Hex Nut Size:
0.75" (3/4") hex nut
Pressure Rating:
260 PSIG
Supply Line Length:
14" (approx. 19" tubing)
Return Line Length:
14.5" (approx. 19" tubing)
Material:
Stainless steel rigid tubing
Application:
Cryogenic helium compressor supply and return gas lines
Country/Region of Manufacture:
United States
Condition Notes:
CTI Cryogenics 8143143 He compressor supply & return line pair inspected and in good used condition. Pulled from a working cryo system. Aeroquip couplings intact. Normal service wear. Please contact us with any questions.
California Prop 65 Warning:
WARNING: This product can expose you to chemicals including lead and lead compounds, and DEHP (a phthalate), which are known to the State of California to cause cancer and birth defects or other reproductive harm. Go to P65Warnings.ca.gov